# usb: gadget: f_mass_storage: fix null pointer dereference in fsg_common_set_num_buffers()

CVE record · `CVE-2026-90023`

- **Identifiers:** `CVE-2026-90023`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:33 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `fe5a6c48fd954489f51aab151d5dad9254c76419 to before 38edd187a37db0d8e4bf84cc954dbdbe7bfa366f` (git)
  - affected: `fe5a6c48fd954489f51aab151d5dad9254c76419 to before e54820b9dc1d6d731ecc3e51462445dc952906a7` (git)
  - affected: `fe5a6c48fd954489f51aab151d5dad9254c76419 to before 5d56dbaeb81d5cd967cdee8ddcc70814b7139246` (git)
  - affected: `fe5a6c48fd954489f51aab151d5dad9254c76419 to before f4f0fe3ab47ed57ee4974fdd3e9dccb7839a7ebf` (git)
  - affected: `fe5a6c48fd954489f51aab151d5dad9254c76419 to before 51cc9af4f2d3f0b765266aced66b9b532b423b13` (git)
  - affected: `fe5a6c48fd954489f51aab151d5dad9254c76419 to before 9e8dd2a7a8ccbb756771ad985b0ad3387ed3c957` (git)
  - affected: `fe5a6c48fd954489f51aab151d5dad9254c76419 to before b9b5b5df5b8dd3c1572ed267200276a44cc67d8e` (git)
  - affected: `fe5a6c48fd954489f51aab151d5dad9254c76419 to before 2c0f5ca48674a5b5f9fa4a9c3325aa48053af0bc` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.8`
  - unaffected: `before 4.8` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.52 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.5 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0024, the 15th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90023](https://www.cve.org/CVERecord?id=CVE-2026-90023)
- [NVD: CVE-2026-90023](https://nvd.nist.gov/vuln/detail/CVE-2026-90023)

### References from the CNA

- <https://git.kernel.org/stable/c/38edd187a37db0d8e4bf84cc954dbdbe7bfa366f>
- <https://git.kernel.org/stable/c/e54820b9dc1d6d731ecc3e51462445dc952906a7>
- <https://git.kernel.org/stable/c/5d56dbaeb81d5cd967cdee8ddcc70814b7139246>
- <https://git.kernel.org/stable/c/f4f0fe3ab47ed57ee4974fdd3e9dccb7839a7ebf>
- <https://git.kernel.org/stable/c/51cc9af4f2d3f0b765266aced66b9b532b423b13>
- <https://git.kernel.org/stable/c/9e8dd2a7a8ccbb756771ad985b0ad3387ed3c957>
- <https://git.kernel.org/stable/c/b9b5b5df5b8dd3c1572ed267200276a44cc67d8e>
- <https://git.kernel.org/stable/c/2c0f5ca48674a5b5f9fa4a9c3325aa48053af0bc>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-90023>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90023/>. Everything for agents: <https://agentprime.io/llms.txt>.